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Paper Information

Title: 

EFFECTS OF WEED SEEDS DISTRIBUTION PATTERN ON POST-DISPERSAL SEED PREDATION OF WILD OAT, WILD BARELY, WILD MUSTARD AND TURNIP WEED

Type: PAPER
Author(s): NOROOZI SHAHRZAD,MOHAMMAD ALIZADEH HASAN,RAHIMIAN MASHHADI HAMID
 
 
 
Name of Seminar: IRANIAN WEED SCIENCE CONGRESS
Type of Seminar:  CONGRESS
Sponsor:  ANKOMANE OLOME ALAFHAYE HARZE IRAN
Date:  2010Volume 3
 
 
Abstract: 

TO DETERMINE THE EFFECT OF WEED DISTRIBUTION PATTERNS (RANDOM, EVEN AND AGGREGATE) ON POST-DISPERSAL SEED PREDATION, FIELD EXPERIMENTS WERE CONDUCTED DURING SIX WEEKS IN 2007 IN A BARELY FIELD IN MASHHAD, NE OF IRAN USING SEEDS OF FOUR ANNUAL WEED SPECIES (AVENA LUDOVICIANA, SINAPIS ARVENSIS, HORDEUM SPONTANEUM AND RAPISTRUM RUGOSUM). SEED DISTRIBUTION PATTERN HAD SIGNIFICANT EFFECT ON PREDATION. FOR ALL SPECIES, THE HIGHEST AND LOWEST PREDATION WAS OBSERVED FOR AGGREGATED AND RANDOM TREATMENTS RESPECTIVELY. RATE OF SEED PREDATION DIFFERENT BETWEEN DIFFERENT SPECIES AND DISTRIBUTION TREATMENTS SO THAT S. ARVENSIS SEEDS WITH AGGREGATED DISTRIBUTION PATTERN HAD THE HIGHEST RATE OF PREDATION AND H. SPONTANEUM SEEDS WITH RANDOM DISTRIBUTION PATTERN HAD THE LOWEST PREDATION RATE.

 
Keyword(s): WEED SEEDS, PREDATION, DISTRIBUTION, PREFERENCE
 
 
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